class_docstr: Dictionary which uses normalized URIs as keys.
code: def __iter__(self):
      return iter(self.store)
  
imports: import itertools
  import json
  import pkgutil
  import re
  from jsonschema.compat import MutableMapping, str_types, urlsplit
label_desc: Use image node_id 6 for calling the URIDict obj's underlying member method code with example usage: obj.__iter__() and returns: iter